Найдите 49cos2
Если cos=2/7

математическая сказка как подружились квадрат и прямоугольник

Образуйте вопросительную и отрицательную форму предложений.

1.My friend lives in London

2.Her uncle speaks French badly.

3.It often snows in winter.

4.He is my best friend.

5.His parents get upp very early.

6.They listen to the news every evening.

7.We usually spend our holidays in the country.